Chair frame



FIG. 1 is a perspective view of a chair frame comprising the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a side view identical to the mirror image of the other sidethereof;

FIG. 4 is a back view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a perspective view from a rear angle of the chair.

FIGS. 2, 3, 4 and 6 have been shown on an enlarged scale with respect toFIG. 1 and FIG. 5 has been shown further enlarged.

The broken lines shown in all views are for illustrative purposes onlyand form no part of the claimed design.

The ornamental design for a chair frame, as shown and described.